ROHM: High-Performance Hall ICs for Automotive Applications

ROHM, a renowned global semiconductor manufacturer headquartered in Kyoto, Japan, has developed a new series of Hall ICs called "BD5310xG-CZ / BD5410xG-CZ" specifically designed for magnetic field detection in automotive applications.

Hall ICs are sensor products that offer non-contact position and motor rotation detection. They have several advantages over mechanical switches, including reduced wear, compact size, and the ability to integrate protective circuits. As a result, they are widely used in various applications. By combining ROHM's expertise in Hall IC technology from mobile devices and consumer electronics with high withstand voltage processes, these Hall ICs aim to improve automotive reliability.

The BD5310xG-CZ / BD5410xG-CZ series features a high withstand voltage process, allowing them to withstand up to 42V, which is an industry-leading capability. They can be directly connected to a 12V battery, making them suitable for scenarios where battery voltage fluctuations may impact performance. Additionally, these ICs have a wide voltage range of 2.7V to 38V, making them compatible with a variety of applications. Furthermore, by utilizing ROHM's proprietary internal topology, these ICs consume approximately 20% less power compared to conventional products, resulting in an industry-leading ultra-low current consumption of only 1.9mA. These products not only meet the reliability standards for automotive electronic products (AEC-Q100, Grade 1) but also include various protection circuits required for automotive applications.

The BD5310xG-CZ series offers two types of products: the unipolar detection type (BD5310xG-CZ) and the alternating detection type (BD5410xG-CZ). Customers can choose the most suitable type based on their specific needs. The product lineup includes 11 models capable of detecting magnetic flux density ranging from 2.0mT to 28.0mT. The unipolar detection type is ideal for applications such as car door position sensing and door lock systems, while the alternating detection type is well-suited for various motor rotation detection applications, including electric windows and sliding doors.